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Summary of Significant Accounting Policies (Details Narrative) - USD ($)		1 Months Ended	3 Months Ended
	Jan. 06, 2017	Nov. 28, 2016	Mar. 31, 2018	Mar. 31, 2017	Dec. 16, 2016
Depreciation expense			$ 186,000	$ 219,000
Stock-based compensation expense			$ 67,000	147,000
Shares excluded from the computation of earnings per share			247,000
Special dividend per share		$ .70
Declared dividends					$ 8,233,000
Dividends paid	$ 8,163,000
Omnibus Stock And Incentive Plan 2013 [Member]
Stock-based compensation expense for the modifications				$ 79,000
Stock option awards granted			0	0
Stock-based awards granted, estimated life			1 year
Stock-based awards granted, expected volatility			66.00%
Stock-based awards granted, dividend yield			0.00%
Stock-based awards granted, risk-free interest rate			1.83%
Stock option awards exercised			0	0
Omnibus Stock And Incentive Plan 2013 [Member] | Restricted Stock [Member]
Restricted stock units (in shares)			0	8,424
Weighted average exercise price (in dollars per share)				$ 1.51
Vesting period				1 year 6 months

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Aggregate dividends declared during the period for each share of common stock outstanding.

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Amount of paid and unpaid cash, stock, and paid-in-kind (PIK) dividends declared, for example, but not limited to, common and preferred stock.

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